AWS Direct Connect Technical Deep Dive (IX)

In the previous posts, we looked at how to use a site‑to‑site VPN to connect your on‑premises network to AWS, and as we saw, it is very easy to set up. So what’s the fuss about Direct Connect (DX), and why would we need one?
To give you a one‑word answer, a VPN connects through the Internet. As you would expect, that comes with some limitations. Latency can be high, and the throughput is capped at around 1.25 Gb/s (per tunnel). So what if we need something more resilient and with much higher throughput?

That is where AWS Direct Connect comes in. As the name suggests, it is a Dedicated Direct Connection (DX Connection) to AWS, giving you a dedicated network link with better performance and reliability compared to a traditional VPN over the Internet.
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